Department of Physiotherapy, University Hospital of North Tees, Stockton on Tees, United Kingdom; Center for Rehabilitation Research, School of Health Professions, Texas Tech University Health Sciences Center, Lubbock, United States.
Center for Rehabilitation Research, School of Health Professions, Texas Tech University Health Sciences Center, Lubbock, United States.
Appl Ergon. 2018 Jan;66:9-17. doi: 10.1016/j.apergo.2017.07.016. Epub 2017 Aug 5.
Upright and slouched sitting are frequently adopted postures associated with increased intradiscal pressure, spinal height loss and intervertebral disc pathology.
To examine the effects of two sustained propped slouched sitting (PSS) postures on spinal height after a period of trunk loading.
Thirty-four participants without a history of low back pain (LBP) were recruited (age 24.4 ± 1.6 years). Subjects sat in (1) PSS without lumbar support and (2) PSS with lumbar support for 10 min, after a period of trunk loading. Spinal height was measured using a stadiometer.
Mean spinal height increase during PSS without lumbar support was 2.94 ± 3.63 mm and with lumbar support 4.74 ± 3.07 mm.
Both PSS with and without lumbar support significantly increased spinal height after a period of trunk loading (p < 0.001). Such PSS postures can provide a valuable alternative to upright sitting and may be recommended for recovering spinal height in the working environment following periods of loading.
直坐和弯腰坐是两种常见的坐姿，它们会增加椎间盘内压力、导致脊柱高度丢失和椎间盘病变。
研究两种持续的斜倚坐姿（PSS）对躯干负荷后脊柱高度的影响。
招募了 34 名无腰痛（LBP）病史的参与者（年龄 24.4±1.6 岁）。受试者在躯干负荷后分别以（1）无腰部支撑的 PSS 和（2）有腰部支撑的 PSS 坐 10 分钟。使用测高仪测量脊柱高度。
无腰部支撑的 PSS 期间，脊柱高度平均增加 2.94±3.63mm，有腰部支撑的 PSS 期间增加 4.74±3.07mm。
躯干负荷后，无论有无腰部支撑，PSS 均能显著增加脊柱高度（p<0.001）。这种 PSS 姿势可为直坐提供一种有价值的替代方法，在工作环境中，可能建议在负荷后恢复脊柱高度。
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